Leptosema aphyllum (Hook.) Crisp
Austral.Syst.Bot. 12:18 (1999)

Conservation Code: Not threatened
Naturalised Status: Native to Western Australia
Name Status: Current

Brief Description
Grazyna Paczkowska, Tuesday 23 July 1996

Prostrate or erect, spreading shrub, 0.1-1 m high. Fl. red/yellow-green-red, May to Oct. Sandy, often gravelly soils. Lateritic ridges, sandplains, granite outcrops.


Beard’s Provinces: Eremaean Province, South-West Province.

IBRA Regions: Avon Wheatbelt, Carnarvon, Coolgardie, Geraldton Sandplains, Murchison, Yalgoo.

IBRA Subregions: Avon Wheatbelt P1, Eastern Murchison, Edel, Geraldton Hills, Lesueur Sandplain, Southern Cross, Tallering, Western Murchison, Wooramel.

IMCRA Regions: Central West Coast.

Local Government Areas (LGAs): Carnamah, Chapman Valley, Dalwallinu, Dowerin, Greater Geraldton, Irwin, Koorda, Mingenew, Moora, Morawa, Mount Marshall, Northampton, Perenjori, Shark Bay, Three Springs, Yalgoo.

Scientific Description
C. Hollister and K.R. Thiele, Friday 17 January 2020

Twining or climbing plants, shrub, spindly shrub (broom-like). Stems flattened or winged, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades absent or apparently so (reduced to scales), alternate, glabrous, flat with flat margins; margins entire; tubercles absent, 4-10; pustules or glands absent. Stipules apparently absent even from the youngest leaves. Pedicel present, 4-6 mm long, hairy. Bracteoles present and persistent, 0.5-2 mm long, hairy, not striate. Calyx 25-28 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 32-45 mm long, multicoloured, mostly yellow, red or green, with some yellow, red or green spots, streaks or blotches; claws absent; standard NaN (?) mm long, glabrous, not auriculate, wings 17 mm long, not auriculate, keel 30-40 mm long, not beaked, not auriculate, glabrous. Stamens ten; anthers 3-4 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 24-32 mm long. Ovary stipitate, hairy or glandular; style 38 mm long, hairy or glandular towards the base, not bearded, terete. Fruit dehiscent (a pod or follicle), sessile or subsessile, not constricted between the seeds, flat or compressed, not beaked. Flowers in May, June, July, August, September and October. Occurs in the Eremaean and South-West Botanical Province, in the Geraldton Sandplains and Avon Wheatbelt IBRA regions.